US6115976A - Door edge assembly for creating a smoke seal about a closed door mounted within a door frame - Google Patents
Door edge assembly for creating a smoke seal about a closed door mounted within a door frame Download PDFInfo
- Publication number
- US6115976A US6115976A US09/399,421 US39942199A US6115976A US 6115976 A US6115976 A US 6115976A US 39942199 A US39942199 A US 39942199A US 6115976 A US6115976 A US 6115976A
- Authority
- US
- United States
- Prior art keywords
- door
- assembly
- body portion
- door edge
- edges
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
- E06B5/164—Sealing arrangements between the door or window and its frame, e.g. intumescent seals specially adapted therefor
Definitions
- This invention relates generally to a door mounted within a door frame and, more particularly, it relates to a door edge assembly for creating a smoke seal about a closed door mounted within a door.
- a fire retardant door often referred to as a "fire door" is installed in a building for preventing the passage or spread of fire during a fire event from one part of the building to another.
- a fire door In the interest of public safety, standards have been set by governmental agencies, building code authorities, and insurance companies for the installation and performance of fire door assemblies that pass industry-wide acceptance tests.
- Fire rating is an important safety factor in the protection of people within a structure, whether it be an office building, hospital, or nursing home for the sick or elderly. Fire ratings vary with the thickness of a door, or the material composition of the door.
- Standard test methods for fire door assemblies such as ASTM E-152, UL 10(b), or NFPA 252, measure the ability of a door assembly to remain in an opening during a fire to retard the passage of the fire during the fire event and evaluate the fire resistant properties of the door.
- doors are mounted in an opening of a fire proof wall. One side of the door is exposed to a predetermined range of temperatures over a predetermined period of time, followed by the application of a high pressure hose stream that causes the door to erode and provides a thermal shock to the assembly. Doors are given a fire rating based on the duration of the heat exposure of twenty (20) minutes, thirty (30) minutes, forty-five minutes (45) minutes, one (1) hour, one and one-half (11/2) hours, or three (3) hours.
- the door assembly receives the fire rating when it remains in the opening for the duration of the fire test and hose stream, within certain limitations of movement and without developing openings through the door either at the core or around the edge material.
- the spacing around the door between an adjacent door or doorjamb of a door frame is also an important factor in providing and maintaining a predetermined, desired fire rating. This spacing is important in both maintaining fire during the fire event from spreading into an adjacent room around the door edges and preventing or deterring the spread of fire smoke into an adjacent room around the door edges. It is well known that the fire smoke can be just as dangerous, if not more dangerous, than the actual fire itself. Unfortunately, despite many attempts to effectively seal adjacent rooms from entry of fire smoke, attempts in the past have failed to effectively seal the areas around the door edges from the entry of fire smoke between the room experiencing the fire event and the immediately adjacent rooms.
- a door assembly for creating a smoke seal about a closed door within a door frame which effectively seals any adjacent rooms from fire smoke during a fire event in an adjoining room. Additionally, a need exists for a door assembly for creating a smoke seal about a closed door within a door frame which maintains a smoke seal between adjacent rooms during a fire event for at least the time duration of the door's fire rating. Furthermore, there exists a need for a door assembly for creating a smoke seal about a closed door within a door frame which does not effect the aesthetic appearance of the door.
- the present invention is an assembly for sealing a fire resistant door within a door frame during a fire event.
- the fire resistant door has a plurality of edges.
- the assembly comprises a first body portion and a second body portion secured to the first body portion.
- An expansion mechanism between the first body portion and the second body portion for moving the second body portion in a direction generally away from the first body portion and against the door frame upon attaining a predetermined temperature with the first body portion, the second body portion, and the expansion means forming a door edge device wherein the door edge device is secured to at least one of the edges of the fire resistant door.
- the present invention further includes a door edge assembly for creating a smoke seal about a closed door in a door frame during a fire event.
- the door has a plurality of door edges.
- the door edge assembly comprises a receiving slot formed in each of the door edges and means secured within each of the receiving slots for sealing the door within the door frame with the means expanding against the door frame upon the means attaining a predetermined temperature thereby sealing smoke from passing between the door and the door frame.
- the present invention further still includes a method for creating a smoke seal about a closed door in a door frame during a fire event.
- the door has a plurality of door edges.
- the method comprises forming a receiving slot in each of the door edges, securing an expandable member within each of the receiving slots, and expanding the expandable member against the door frame upon the expandable member attaining a predetermined temperature.
- FIG. 1 is an exploded side view illustrating a door edge assembly for creating a smoke seal about a closed door in a door frame during a fire event, constructed in accordance with the present invention
- FIG. 2 is a side view illustrating an embodiment of the door edge assembly for creating a smoke seal about a closed door in a door frame during a fire event, constructed in accordance with the present invention, prior to forming the door edge assembly into the proper configuration and the final configuration of the door edge assembly being illustrated in phantom;
- FIG. 3 is a side view illustrating the embodiment of the door edge assembly for creating a smoke seal about a closed door in a door frame during a fire event as illustrated in FIG. 2, constructed in accordance with the present invention, with the door edge assembly being positioned within the door edge of the door;
- FIG. 4 is a side view illustrating another embodiment of the door edge assembly for creating a smoke seal about a closed door in a door frame during a fire event, constructed in accordance with the present invention, prior to forming the door edge assembly into the proper configuration and the final configuration of the door edge assembly being illustrated in phantom;
- FIG. 5 is a side view illustrating the embodiment of the door edge assembly for creating a smoke seal about a closed door in a door frame during a fire event as illustrated in FIG. 4, constructed in accordance with the present invention, with the door edge assembly being positioned within the door edge of the door.
- the present invention is a door edge assembly, indicated generally at 10, for creating a smoke seal about a closed door 12 in a door frame 13.
- Each door 12 typically has four edges 14, namely a top edge, a bottom edge, hinge side edge, and a latch throw side edge.
- the door edge assembly 10 of the present invention is constructed and designed to be used on all four edges 14 of the door 12 for creating an effective smoke seal around the edges 14 of the door 12 between adjacent rooms during a fire event.
- the door 12 is fire retardant door or fire door is installed in the door frame 13 of a building for preventing the passage or spread of fire during a fire event from one part of the building to another.
- the door 12 must also be aesthetically pleasing. Therefore, the door 12 can include overlaying a core of incombustible material with a thin wood veneer facing that provides the door 12 with an attractive appearance.
- other types of aesthetically pleasing doors 12 are within the scope of the present invention including fire resistant or fireproof fiberboard doors.
- the door edge assembly 10 of the present invention includes a first body strip 16 having a first side surface 18, a second side surface 20, a front side surface 22, and a back side surface 24 and a second body strip 26 having a first side surface 28, a second side surface 30, a front side surface 32, and a back side surface 34.
- Both the first body strip 16 and the second body strip 26 are preferably constructed from a solid wood material, such as poplar or finger joint pine. It should be noted, however, that it is within the scope of the present invention to construct the first body strip 16 and the second body strip 26 from other materials besides a solid wood material including, but not limited to, wood composite materials, plastic, metal, etc.
- the first body strip 16 has a width of approximately one and seven-eighths (17/8") inches and a variable thickness. It is within the scope of the present invention for the first body strip 16 to have a width greater than or less than approximately one and seven-eighths (17/8") inches.
- the second body strip 26 has a width of approximately one and seven-eighths (17/8") inches and a thickness of approximately seven-sixteenths (7/16") inch. It is within the scope of the present invention for the second body strip 26 to have a width greater than or less than approximately one and seven-eighths (17/8") inches and a thickness of greater than or less than approximately seven-sixteenths (7/16") inch.
- the length of both the first body strip 16 and the second body strip 26 is preferably at least equal to the length of the door edge 14 of the door 12.
- the length of both the first body strip 16 and the second body strip 26 can extend beyond the adjacent door edge 14 to overlap the first body strip 16 and the second body strip 26 mounted on the adjacent door edge 14, as will be described in further detail below.
- the door edge assembly 10 of the present invention further includes a slot formed 36 in the front side surface 22 of the first body strip 16.
- the slot 36 preferably has a depth of approximately one-eighth (1/8") inch and a width of approximately three-quarters (3/4") inch although having the slot 36 have a depth greater than or less than approximately one-eighth (1/8") inch and a width greater than or less than approximately three-quarters (3/4") inch is within the scope of the present invention.
- the length of the slot 36 is preferably equal to the length of the door edge 14 of the door 12, the first body strip 16, and the second body strip 26.
- the door edge assembly 10 of the present invention further includes a intumescent strip 38 or other heat expandable materials receivable within the slot 36.
- the intumescent strip 38 is constructed and designed to expand upon reaching a certain reaction temperature when exposed to a fire event or other extreme heat source.
- the dimensions of the intumescent strip 38 are approximately equal to the dimensions of the slot 36 such that the intumescent strip 38 does not extend beyond the front side edge 22 of the first body strip 16.
- the intumescent strip 38 is positioned in the slot 36 formed in the front side surface 22 of the first body strip 16.
- the back side surface 34 of the second body strip 26 is secured to the front side surface 22 of the first body strip 16 by a fastening mechanism 40 thereby completely covering the intumescent strip 38.
- the fastening mechanism 40 is an adhesive layer applied between the back side surface 34 of the second body strip 26 and the front side surface 22 of the first body strip 16 although other types of fastening mechanism are within the scope of the present invention.
- the adhesive bond layer 40 between the first body strip 16 and the second body strip 26 can be overcome by the expansion of the intumescent strip 38 during exposure of the door 12 to a fire event or other heat source as will be described in further detail below.
- first and second body strip 16, 26 are formed into the final door edge assembly 10 of the present invention.
- a portion of the first side surface 18, the second side surface 20, and the back side surface 24 of the first body strip 16 and a portion of the first side surface 28, the second side surface 30, and the front side surface 32 of the second body strip 26 are removed thereby creating an assembly first side surface 42, an assembly second side surface 44, an assembly front side surface 46, and an assembly back side surface 48.
- the door edge assembly 10 of the present invention can have a substantially trapezoidal cross-sectional configuration. As illustrated in FIG. 5, the door edge assembly 10 can also have a substantially rectangular cross-sectional configuration. While the door edge assembly 10 has been described and illustrated as having a substantially trapezoidal cross-sectional configuration or a substantially rectangular cross-section configuration, it is within the scope of the present invention that the door edge assembly 10 have a variety of cross-sectional configurations including, but not limited to, a half-circular, a half-oval cross-sectional configuration, a triangular cross-sectional configuration, etc.
- the angle between the assembly first side surface 42 and the assembly front side surface 46 is an acute angle of approximately twenty (20°) degrees and the angle between the assembly second side surface 44 and the assembly front side surface 46 is approximately twenty (20°) degrees. It is within the scope of the present invention, however, to have the angle between the assembly first side surface 42 and the assembly front side surface 46 and between the assembly second side surface 44 and the assembly front side surface 46 be greater than approximately twenty (20°) degrees up to and including approximately ninety (90°) degrees, e.g., a substantially rectangular cross-sectional configuration, as illustrated in FIGS. 4 and 5, or less than approximately twenty (20°) degrees.
- each edge 14 of the door 12 includes a receiving slot 50 formed therein and configured and shaped as the particular door edge assembly 10.
- the receiving slot 50 extends the entire length of the edge 14 of the door 12 for receiving the door edge 10.
- the receiving slot 50 can have a substantially trapezoidal cross-sectional configuration for receiving the door edge assembly 10 having a substantially trapezoidal cross-sectional configuration or, as illustrated in FIG. 5, the receiving slot 50 can have a substantially rectangular cross-sectional configuration for receiving the door edge assembly 10 having a substantially rectangular cross-sectional configuration. It should be noted, however, that a receiving slot 50 having other cross-sectional configurations including, but not limited to, a half-circular, a half-oval cross-sectional configuration, a triangular cross-sectional configuration, etc., are within the scope of the present invention.
- the actual cross-sectional configuration of the receiving slot 50 is determined by the desired and/or required amount of surface area necessary for securing the door edge assembly 10 within the receiving slot 50 and maintaining the door edge assembly 10 from separating from within the receiving slot 50 of the edge 14 of the door 12.
- the receiving slot 50 has a first slot surface 52, a second slot surface 54, and a third slot surface 56.
- the angle between the first slot surface 52 and the third slot surface 56 is an angle of approximately seventy (70°) degrees and the angle between the second slot surface 54 and the third slot surface 56 is an angle of approximately seventy (70°) degrees.
- the angle between the first slot surface 52 and the third slot surface 56 and between the second slot surface 54 and the third slot surface 56 be greater than approximately seventy (70°) degrees up to and including approximately ninety (90°) degrees, e.g., a substantially rectangular cross-sectional configuration, as illustrated in FIG. 5, or less than approximately seventy (70°) degrees.
- the door edge assembly 10 preferably has the same cross-sectional configuration as the receiving slot 50, as illustrated in FIGS. 3 and 5.
- the door edge assembly 10 of the present invention is positioned within the receiving slot 50 such that the assembly first side surface 42 of the door edge assembly 10 is positioned against the first slot surface 52 of the receiving slot 50, the assembly second side surface 44 of the door edge assembly 10 is positioned against the second slot surface 54 of the receiving slot 50, and the assembly back side surface 48 of the door edge assembly 10 is positioned against the third slot surface 56 of the receiving slot 50.
- the door edge assembly 10 is appropriately sized and shaped such that the assembly front side surface 46 is even with the edges 14 of the door 12. If the assembly front side surface 46 of the door edge assembly 10 extends beyond the edges 14 of the door 12 it can be planed or sanded until the assembly front side surface 46 is even with the edges 14 of the door 12.
- An adhesive layer 58 can be applied between each of the assembly side surfaces 42, 44, 48 of the door edge assembly 10 and each of the slot surfaces 52, 54, 56 of the receiving slot 50, respectively, to maintain the relative position of the door edge assembly 10 within the receiving slot 50. While the door edge assembly 10 has been described as being secured within the receiving slot 50 with adhesive other types of fastening mechanisms are within the scope of the present invention. Furthermore, all door hardware (not shown) can be secured directly to the assembly front side surface 42 of the door edge assembly 10 and the door 12 can then be mounted within the door frame 13.
- the intumescent strip 38 expands upon reaching the predetermined reaction temperature.
- the expansion of the intumescent strip 38 within the door edge assembly 10 causes the second body strip 26 to separate from the first body strip 16 in a direction generally away from the first body strip 16 and toward the door frame 13.
- the second body strip 26 continues to move in a generally outward direction upon expansion of the intumescent strip 38 until the second body strip 26 contacts against the door frame 13.
- the contact of the second body strip 26 of the door edge assembly 10 with the door frame 13 creates a seal between the door edge assembly 10 and the door frame 13 along all of the edges 14 of the door 12 such that smoke can not pass therethrough. Any overlap of the door edge assembly 10 with an adjacent door edge assembly 10 on an adjacent door edge 12 further seals the door 12 within the door frame.
- the intumescent strip 38 inhibits passage of smoke between the first body strip 16 and the second body strip 26 along all of the edges 14 of the door 12. As a result of the second body strip 26 contacting the door frame 13 and the presence of the intumescent strip 38 a fire event in a room or other part of the building is inhibited from entering the adjacent room about the door 12.
Abstract
Description
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US09/399,421 US6115976A (en) | 1999-09-20 | 1999-09-20 | Door edge assembly for creating a smoke seal about a closed door mounted within a door frame |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US09/399,421 US6115976A (en) | 1999-09-20 | 1999-09-20 | Door edge assembly for creating a smoke seal about a closed door mounted within a door frame |
Publications (1)
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US6115976A true US6115976A (en) | 2000-09-12 |
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Application Number | Title | Priority Date | Filing Date |
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US09/399,421 Expired - Lifetime US6115976A (en) | 1999-09-20 | 1999-09-20 | Door edge assembly for creating a smoke seal about a closed door mounted within a door frame |
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Cited By (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002001014A1 (en) * | 2000-06-30 | 2002-01-03 | Isolamin Ab | Arrangement for a wall or roof construction built by elements |
WO2002031306A1 (en) * | 2000-10-12 | 2002-04-18 | Mdf, Inc. | Fire door and method of assembly |
US6434899B1 (en) * | 2001-03-12 | 2002-08-20 | Skamol A/S | Fire resistant door edge construction comprising a stile with groove, high density strip in the groove, an intumescent strip seal, covered by an edge lipping |
US20030066257A1 (en) * | 2001-10-04 | 2003-04-10 | Barry Shovlin | Method for manufacturing a door and door manufactured therefrom |
WO2003072888A2 (en) * | 2002-02-26 | 2003-09-04 | Washington Hardwoods Co., Llc | Fire-resistant wood assemblies for building |
US6643991B1 (en) | 2000-10-12 | 2003-11-11 | Premdor International, Inc. | Fire door and method of assembly |
US20040211150A1 (en) * | 2003-04-26 | 2004-10-28 | Axel Bobenhausen | Method and apparatus for detecting smoke and smothering a fire |
US20050076593A1 (en) * | 2003-10-14 | 2005-04-14 | E.M.E.H., Inc. | Door edge construction |
US6886306B2 (en) * | 2001-05-04 | 2005-05-03 | Greencor Composites, Llc | Fire-resistant material and method of manufacture |
US20050284030A1 (en) * | 2004-06-14 | 2005-12-29 | Enrico Autovino | Fire retardant panel door and door frame having intumescent materials therein |
US20060048466A1 (en) * | 2004-09-09 | 2006-03-09 | Duane Darnell | Systems and installation methods for a fire-resistant door jamb |
US20060207199A1 (en) * | 2005-02-15 | 2006-09-21 | Duane Darnell | Fire door |
US20060272247A1 (en) * | 2003-10-14 | 2006-12-07 | Bartlett Gary F | Door edge construction |
US7832166B2 (en) | 2006-02-21 | 2010-11-16 | Polymer-Wood Technologies, Inc. | System, method and apparatus for producing fire rated doors |
GB2473428A (en) * | 2009-09-07 | 2011-03-16 | Leaderflush & Shapland Ltd | A door |
US8230659B2 (en) | 2010-06-25 | 2012-07-31 | Lanotek Products Inc. | Intumescent fire door edge system |
EP2615235A1 (en) | 2012-01-11 | 2013-07-17 | Rf-Technologies nv | Method for manufacturing a frame profile for a fire resistant door |
EP2626501A1 (en) | 2012-01-11 | 2013-08-14 | RF-Technologies | Method for manufacturing a frame profile for a fire resistant door. |
EP2653644A1 (en) | 2012-04-17 | 2013-10-23 | RF-Technologies | Method for manufacturing a frame profile for a fire resistant door |
US8881494B2 (en) | 2011-10-11 | 2014-11-11 | Polymer-Wood Technologies, Inc. | Fire rated door core |
US8915033B2 (en) | 2012-06-29 | 2014-12-23 | Intellectual Gorilla B.V. | Gypsum composites used in fire resistant building components |
US9243444B2 (en) | 2012-06-29 | 2016-01-26 | The Intellectual Gorilla Gmbh | Fire rated door |
US9375899B2 (en) | 2012-06-29 | 2016-06-28 | The Intellectual Gorilla Gmbh | Gypsum composites used in fire resistant building components |
US9475732B2 (en) | 2013-04-24 | 2016-10-25 | The Intellectual Gorilla Gmbh | Expanded lightweight aggregate made from glass or pumice |
US20170159350A1 (en) * | 2015-12-02 | 2017-06-08 | Masonite Corporation | Fire resistant door cores, door skins, and doors including the same |
US9890083B2 (en) | 2013-03-05 | 2018-02-13 | The Intellectual Gorilla Gmbh | Extruded gypsum-based materials |
WO2018211269A3 (en) * | 2017-05-16 | 2018-12-20 | Scotdor | Fire and impact resistant door and lipping |
US10196309B2 (en) | 2013-10-17 | 2019-02-05 | The Intellectual Gorilla Gmbh | High temperature lightweight thermal insulating cement and silica based materials |
US10414692B2 (en) | 2013-04-24 | 2019-09-17 | The Intellectual Gorilla Gmbh | Extruded lightweight thermal insulating cement-based materials |
US10442733B2 (en) | 2014-02-04 | 2019-10-15 | The Intellectual Gorilla Gmbh | Lightweight thermal insulating cement based materials |
US20200011126A1 (en) * | 2018-06-22 | 2020-01-09 | Goldense Opening Solutions Llc | Systems and methods for providing door clearance modification |
US10538459B2 (en) | 2014-06-05 | 2020-01-21 | The Intellectual Gorilla Gmbh | Extruded cement based materials |
US11072562B2 (en) | 2014-06-05 | 2021-07-27 | The Intellectual Gorilla Gmbh | Cement-based tile |
US20220010612A1 (en) * | 2020-07-13 | 2022-01-13 | Fire Door Core Pty Ltd | Fire Resistant Door Panel, Method of Manufacture and Installation Thereof |
GB2616885A (en) * | 2022-03-24 | 2023-09-27 | Ram Extrusion Ltd | Fire-resistant under-frame packer body for a glazed frame assembly |
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WO2002001014A1 (en) * | 2000-06-30 | 2002-01-03 | Isolamin Ab | Arrangement for a wall or roof construction built by elements |
WO2002031306A1 (en) * | 2000-10-12 | 2002-04-18 | Mdf, Inc. | Fire door and method of assembly |
US6643991B1 (en) | 2000-10-12 | 2003-11-11 | Premdor International, Inc. | Fire door and method of assembly |
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US20050258561A1 (en) * | 2001-05-04 | 2005-11-24 | Fibertech, Inc. | Fire-resistant material and method of manufacture |
US6886306B2 (en) * | 2001-05-04 | 2005-05-03 | Greencor Composites, Llc | Fire-resistant material and method of manufacture |
US20030066257A1 (en) * | 2001-10-04 | 2003-04-10 | Barry Shovlin | Method for manufacturing a door and door manufactured therefrom |
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US7487591B2 (en) | 2002-02-26 | 2009-02-10 | Washington Hardwoods Co., Llc | Method of constructing a fire-resistant frame assembly |
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US20070113521A1 (en) * | 2003-10-14 | 2007-05-24 | Bartlett Gary F | Door Edge Construction |
US20060272247A1 (en) * | 2003-10-14 | 2006-12-07 | Bartlett Gary F | Door edge construction |
US20050076593A1 (en) * | 2003-10-14 | 2005-04-14 | E.M.E.H., Inc. | Door edge construction |
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US20050284030A1 (en) * | 2004-06-14 | 2005-12-29 | Enrico Autovino | Fire retardant panel door and door frame having intumescent materials therein |
US20060048466A1 (en) * | 2004-09-09 | 2006-03-09 | Duane Darnell | Systems and installation methods for a fire-resistant door jamb |
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